U 31 (U-Boot, 2005)

German submarine U-31 - S181. Article “U 31 (U-Boot, 2005)” in German Wikipedia has 40.9 points for quality (as of July 1, 2025). The article contains 19 references and 10 sections.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that (German) language version.

In June 2025 the article “U 31 (U-Boot, 2005)” was edited by 2 authors in German Wikipedia and written by 3 authors in all languages.

Since the creation of article “U 31 (U-Boot, 2005)”, its content was written by 83 registered users of German Wikipedia and edited by 137 registered Wikipedia users in all languages.

The article is cited 42 times in German Wikipedia and cited 107 times in all languages.

The highest Authors Interest rank from 2001:

• Local (German): #3414 in December 2022
• Global: #41589 in November 2005

The highest popularity rank from 2008:

• Local (German): #24740 in July 2008
• Global: #195682 in January 2016

There are 7 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	German (de) U 31 (U-Boot, 2005)		40.8956
2	Spanish (es) Submarino U-31 (S181)		25.6742
3	Polish (pl) U-31 (2002)		19.4929
4	English (en) German submarine U-31 (S181)		18.3993
5	Japanese (ja) U31 (ドイツ潜水艦・3代)		6.1396
6	Persian (fa) زیردریایی یو-۳۱ (اس۱۸۱)		3.8391
7	Arabic (ar) الغواصة الألمانية يو-31 (أس181)		3.4741

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "U 31 (U-Boot, 2005)" in all the time

#	Language	Popularity award	Relative popularity
1	German (de) U 31 (U-Boot, 2005)		383 214
2	English (en) German submarine U-31 (S181)		136 426
3	Japanese (ja) U31 (ドイツ潜水艦・3代)		28 988
4	Polish (pl) U-31 (2002)		17 880
5	Spanish (es) Submarino U-31 (S181)		16 410
6	Arabic (ar) الغواصة الألمانية يو-31 (أس181)		789
7	Persian (fa) زیردریایی یو-۳۱ (اس۱۸۱)		767

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The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "U 31 (U-Boot, 2005)" in June 2025

#	Language	Popularity award	Relative popularity
1	German (de) U 31 (U-Boot, 2005)		1 368
2	English (en) German submarine U-31 (S181)		372
3	Japanese (ja) U31 (ドイツ潜水艦・3代)		76
4	Polish (pl) U-31 (2002)		43
5	Spanish (es) Submarino U-31 (S181)		38
6	Arabic (ar) الغواصة الألمانية يو-31 (أس181)		7
7	Persian (fa) زیردریایی یو-۳۱ (اس۱۸۱)		2

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The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "U 31 (U-Boot, 2005)" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	German (de) U 31 (U-Boot, 2005)		83
2	English (en) German submarine U-31 (S181)		30
3	Polish (pl) U-31 (2002)		8
4	Japanese (ja) U31 (ドイツ潜水艦・3代)		7
5	Spanish (es) Submarino U-31 (S181)		6
6	Arabic (ar) الغواصة الألمانية يو-31 (أس181)		2
7	Persian (fa) زیردریایی یو-۳۱ (اس۱۸۱)		1

More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "U 31 (U-Boot, 2005)" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	German (de) U 31 (U-Boot, 2005)		2
2	English (en) German submarine U-31 (S181)		1
3	Arabic (ar) الغواصة الألمانية يو-31 (أس181)		0
4	Spanish (es) Submarino U-31 (S181)		0
5	Persian (fa) زیردریایی یو-۳۱ (اس۱۸۱)		0
6	Japanese (ja) U31 (ドイツ潜水艦・3代)		0
7	Polish (pl) U-31 (2002)		0

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The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "U 31 (U-Boot, 2005)" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	German (de) U 31 (U-Boot, 2005)		42
2	English (en) German submarine U-31 (S181)		26
3	Japanese (ja) U31 (ドイツ潜水艦・3代)		12
4	Spanish (es) Submarino U-31 (S181)		11
5	Arabic (ar) الغواصة الألمانية يو-31 (أس181)		9
6	Polish (pl) U-31 (2002)		6
7	Persian (fa) زیردریایی یو-۳۱ (اس۱۸۱)		1

More...

#	Language	Value
ar	Arabic الغواصة الألمانية يو-31 (أس181)
de	German U 31 (U-Boot, 2005)
en	English German submarine U-31 (S181)
es	Spanish Submarino U-31 (S181)
fa	Persian زیردریایی یو-۳۱ (اس۱۸۱)
ja	Japanese U31 (ドイツ潜水艦・3代)
pl	Polish U-31 (2002)

Best Rank

German: #24740 07.2008

Global: #195682 01.2016

Best Rank

German: #3414 12.2022

Global: #41589 11.2005

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In German Wikipedia the most popular articles on that day were: Georg Koch (Fußballspieler), Iran, Edoardo Weber, Liste der größten Auslegerbrücken, Irankrieg 2026, Dena (Schiff), Kristi Noem, Jakowlew Jak-130, Supermarine Spitfire, Ali Chamenei.

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information